Machine for reducing ore



(No Model.) 5 SheetsSheet 1-.

- W. F. KILBORN.

MACHINE FOR REDUCING ORE, 6w.

Patented Nov. 22,1881.

(No Model.)

- 5 sheets-Sheena. W. F. KILBORN'.

MACHINE FOR REDUCING ORE, 6:0.

No. 249,949. Patented Now-22,1881.

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N. PEYERS. PbolwUlhog 5 Sheets-Sheet 3.

(No Model.)

W. P. KILBORN.

MACHINE FOR REDUCING ORE, 8:0.

No. 249,949. Patented Nov. 22,1881.

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5 Sheets-Sheet 4.

(No Model.)

W. P. KILBORN.

MACHINE FOR REDUCING ORE, aw. No. 249,949 Patented Nov. 22,1881.

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(No Model.) 5 Sheets-Sheet 5.

W. F.. KILBORN.

MACHINE FOR REDUCING ORE, 650. No. 249,949. Patented Nov. 22,1881.

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UNITED STATES PATENT Drama. 1

WILBER F. KILBOR-N, OF CEDAR RAPIDS, IOWA.

MACHINE FOR REDUCING ORE,&.0.

SPECIFICATION forming part of Letters Patent No. 249,949, dated November 22, 1881.

Application filed August 18, 1881. (No model.)

To all whom it may concern Be it known that I, WILBER F. KILBoRN, a citizen of the United States, residing at Cedar Rapids, in the county of Linn and State of Iowa, have invented certain new and useful Improvements in Machines for Reducing Ore and Minerals; and I do hereby declare the following to beafull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters or figures ofreference marked thereon, which form a part of this specification.

Figure 1 is a front elevation of the device as arranged for ordinary use. Fig. 2 is a vertical central section of Fig. 1. Fig. 3 is a top plan of Fig. 1. Fig. 4 is a perspective view of one of thedistributing-plates of the apparatus. Fig. 5 is a perspective view of the distributing and reducing plates detached from each other. Fig. 6 is a perspective and sectional view to show the progress of the ore from the hopper and through the distributer and reducing plates to the exit.

This invention relates to that class of devices which are designed for reducing ore and minerals; and the novelty in the present instance consists in the construction of the several parts and in their adaptation to and combination with each other, all as will now be set out in detail, reference being had to the accompanying drawings, in Fig. l of whichis shown a front elevation of the present device composed of any desired number of horizontal sections A, each of which is a substantial counterpart of the others, and embodies most of the essential points of novelty in the present instance. In use only three of these may be employed, as where amoderate amount of work is to be done, or the ore is easily reduced, or only an ordinary degree of fineness is desired; but I design to put as few or many of these sections in a single machine as may be needed. For the present illustration I have shown three of them, which are suitably mounted in or secured to the frame B in any desired way or manner. Motion is communicated to the machine by means of horizontal shaft O and bevel gear 0, which acts v on bevel d and drives the vertical shaft D, placed centrally in the machine, and extending from top to bottom. In this shaft is a longitudinal slot, d, in which the splines e on the insides of the central openings in the hubs e of the horizontal revolving plates E, carrying distributors E, fit, and by means of which the shaft communicates motion to said distributers. The mineral or ore to be ground is fed into the hopperF, placed over the upper section, A, and from thence it passes, by means of the worm-feed f, (which has motion by belt-connection from shaft 0,) down through the opening or chutea in the top plate, a, of the upper section, A, upon the annular part E. of the dist-ributer-plate E, which is directly under it, and thence falls, as said plate revolves, down the inclinese, and

through the openings e in said distributer (or a part may fall directly through said openings) into the annular trough G below. This trough has reducers H, which are loose pieces in shape of the arc of a circle, and are moved around said horizontal trough by vmeans of lugs E on the under side of plate E, which take into sockets h in said reducers. It will be observed that the parts H are fixed in this manner so as to allow the ore or material to fall directly into the trough G before them as they are being revolved concurrently with and by means of the plate E. This annular trough G rests upon the horizontal annular 'plate I, and may be secured thereto by the dowel-pins i, or in any desired way.

The casing or jacketK, of metal, suitably incloses each section A, and may rest on the outer edge of the plate I, snugly fitting the outer rim of the trough G. This jacket will not only serve to inclose each section, but also aid in keeping the dust from blowing away. The cap G covers the central opening in the trough G, resting at its edges on the inner circumference of G. In the center is an aperture, g, for the shaft D to pass through. When the mineral or ore has been fed down into this troughGit is very thoroughly reduced or ground by the action of thereducers H as they are moved over the annular trough G. When this has been accom plished to the desired degree of fineness, the ore or mineral so properly reduced is discharged from one of the side ports, L, through the opening '5 in the edge of the bottom plate, Linto the annular space E of the distributingplate in the section next below. These ports have suitable doors, I, which may move in guides, be hinged or otherwise properly adapted, or I may, by any suitable equivalent appliance, convey the reduced ore or mineral from one section to the next one below. The ports L may be arranged in the front part of each section or on two opposite sides of each section. There may be one or any desired number of them.

When it is designed to discharge the ore from any one section outwardly, the chute I. or like device may be used.

By means of the set-screw M, which passes through hub e of the plate E, the said plate may be kept in proper relation to the reducingtrough and its reducers H to insure the most perfect work. By this construction and the combination of the parts, as above described, two or more annular troughs, one above the other, are provided, each having equal capacity and equal motion. For more convenient access to each section any suitable opening and door is provided, as now shown at A. Each section can be run by itself by merely altering the connection with the central vertical shaft, or by any mechanical change requisite, and thus one, two, or all may be run at the same time. The method of feeding the ore or mineral to the reducing parts at one'side of the annular distributer-plate E, as is now done, byplacing the chute a under the mouth of the hopper F, is of especial advantage, as it helps essentially to the effective operation of the machine, since by this method of feeding the ore or mineral is ofl'ered in such quantities and in such a way as to be most thoroughlyacted on by the'reducers.

This machine or apparatus is equally well adapted for wet or dry pulverizing. It will be observed that the action of this machine is very thorough and very rapid; the material to be reduced is fed in such a way as not to clog any of the operative parts, while it is offered to the reducers in the most admirable manner for beingefl'ectively acted on. The machine will run very easily and with much less power than is ordinarily required in a machine adapted to do as much work.

Having thus described my invention, whatI consider new, anddesire to secure by Letters Patent, is-- 1. In a machine or apparatus as described, the distributer-plate E, having hub 0, double inclines e, and openings 0 in combination with the trough G and reducers H, substantially as set forth.

2. The reducing-trough G, having reducers H, provided with sockets h, combined with plate E, having lugs E on its under side, substantially as and for the purposes set forth.

3. In a reducing-machine, as described, the section A, embracing in its organization the bottom plate, I, the reducing-trough Gr, reducers H, distributing plate E, having hub e, combined with shaft D, substantially as set forth.

4. In a reducing-machine, as described, the combination of two or more sections, the internal parts of which are revolved on a common shaft, and each provided with side exit-port, L, and side inlet-feeds, a and i, substantially as set forth.

5. The combination of the vertical shaft D, the annular distributer-plate E, having hub e, splines e, and set-screw M, with the reducers H and reducing-trough G, substantially as described.

6. In a reducing-machine, substantially as described, the combination of hopper F, having screwf and chute a, with the distribnter-plate E, reducers H, and troughs Gr, whereby the material is fedinto the machine at the side of an annular plate, and thence distributed through it to the annular reducers below,operatin g concurrently therewith, substantiallyas described.

In testimony whereof I aflix my signature in presence of two witnesses.

WILBER F. KILBORN.

Witnesses:

JAMEs J. CHILD, I. N. WH'ITTAM. 

